Date: Wed, 19 Dec 2018 03:51:36 +0100 From: Adam Zabrocki <pi3@....com.pl> To: lkrg-users@...ts.openwall.com Subject: Re: insmod: ERROR: could not insert module p_lkrg.ko: No buffer space available On Tue, Dec 18, 2018 at 09:03:44PM +0100, bryn1u85 wrote: > hey guys, > > I recompiled kernel to kernel-4.19.10. After that im trying to run lkrg but > im getting errors like below: > > > [root@...alhost output]# insmod p_lkrg.ko > insmod: ERROR: could not insert module p_lkrg.ko: No buffer space available > [root@...alhost output]# > > [ 97.954081] p_lkrg: loading out-of-tree module taints kernel. > [ 97.954346] p_lkrg: module verification failed: signature and/or > required key missing - tainting kernel > [ 97.955845] [p_lkrg] Loading LKRG... > [ 97.990086] [p_lkrg] Can't initialize exploit detection features! > Exiting... > [root@...alhost output]# > > What can i do in this situation ? > Thanks ! Hi, I believe you've already asked the same question a few times. Alexander replied to you here: https://www.openwall.com/lists/lkrg-users/2018/12/06/1 Additionally, that can be useful for you too: https://forums.gentoo.org/viewtopic-p-8247498.html?sid=72c22d571ef610bb77a41150177a2939#8247498 In short: "For the future reference, if you would like to know why LKRG fails initialization you can try this simple scenario: LKRG module has a parameter p_init_log_level which defines default log_level which is going to be used during initialization. You can read more about log_level option (and in general about communication channel) here: https://openwall.info/wiki/p_lkrg/Examples#Communication-channel In short it might be a number between 0-4 or 0-6 (if debugging compilation was used). If LKRG fails initialization I'm suggesting to use at least number 4 for this parameter (e.g. # insmod p_lkrg.ko p_init_log_level=4). It will give more information about the root of the problem. If debug option is enabled number 5 and 6 is also available but you need to be carefully using it to not spam the kernel with too many logs." Thanks, Adam -- pi3 (pi3ki31ny) - pi3 (at) itsec pl http://pi3.com.pl
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